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2. Significant Accounting Policies: Financial Instruments: Fair Value, Assets Measured on Recurring Basis (Details) - USD ($)
Nov. 30, 2017
Aug. 31, 2017
Nov. 30, 2016
Aug. 31, 2016
Details        
Cash $ 5,560,066 [1] $ 5,912,250 $ 4,899,362 [1] $ 4,519,922
[1] Supplemental disclosure with respect to cash flows (note 14)